Add mass assignable attributes to User model and specify custom login page in AdminPanelProvider

app/Models/User.php

@@ -14,6 +14,18 @@ class User extends Authenticatable implements FilamentUser
     /** @use HasFactory<UserFactory> */
     use HasFactory, Notifiable;
 
+    /**
+     * The attributes that are mass assignable.
+     *
+     * @var array<int, string>
+     */
+    protected $fillable = [
+        'name',
+        'email',
+        'password',
+        'phone_number',
+    ];
+
     /**
      * The attributes that should be hidden for serialization.
      *